Conversions & Swaps LSX Engines in Non-LSX Vehicles
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foxbody 5.3 ls swap

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Old Jun 17, 2015 | 11:01 PM
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Default foxbody 5.3 ls swap

Hey,ive been doing this swap for the last 2 months.so i finally decided to post a thread.
I have a 1990 lx hatch ,i bought a 02 5.7 from my buddy, but the block was cracked at the bellhousing from when he wrecked.so i decided to use a diff. Bottom end, i picked up a 5.3 yesterday for 240 from the junkyard.its from a totalled 2005 z71.i already bolted my aje k member in place.i have my fuel setup pretty much done.hoping to drop the motor in tomorrow.
Attached Thumbnails foxbody 5.3 ls swap-20150503_131131.jpg   foxbody 5.3 ls swap-20150513_184422.jpg   foxbody 5.3 ls swap-20150616_182854.jpg   foxbody 5.3 ls swap-20150617_211726.jpg   foxbody 5.3 ls swap-20150422_182527.jpg  


Last edited by ls1ChevyStang; Jun 17, 2015 at 11:14 PM.
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Old Oct 1, 2015 | 09:17 PM
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Default Update

Sorry its been awhile since I've updated my thread,I've been moving and finally settled in.so im back it at again.i have the motor and trans in,however its cocked to the driverside.im hoping someone has had this problem and can help me out.once i have this done i can finish up on getting my parts.thx allot
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Old Oct 1, 2015 | 09:21 PM
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Default Update pics

Here are a few updated pics.sry it was dark and i havent gotten to clean it very well..
Attached Thumbnails foxbody 5.3 ls swap-20151001_203756.jpg   foxbody 5.3 ls swap-20151001_204857.jpg   foxbody 5.3 ls swap-20151001_205112.jpg  
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Old Oct 2, 2015 | 09:49 AM
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Are you using the truck oil pan?
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Old Oct 2, 2015 | 02:35 PM
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Yes,i am for now.when i get it situated ill buy the f body pan.
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Old Oct 2, 2015 | 04:22 PM
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ya, i don't think i would drive it like that..
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Old Oct 2, 2015 | 04:46 PM
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Originally Posted by booboo37
ya, i don't think i would drive it like that..
It would definitely make me nervous lol
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Old Oct 2, 2015 | 05:13 PM
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Originally Posted by Steven32
It would definitely make me nervous lol
I definitely don't intend on driving it like that.seems like it would turn out bad haha.. i think there's only 5 inches of ground clearance. .
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Old Oct 2, 2015 | 07:21 PM
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Where ya going to find a f-body pan ?......you only need to move the motor up about 2 inches to change pans..
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Old Oct 2, 2015 | 07:31 PM
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Originally Posted by booboo37
Where ya going to find a f-body pan ?......you only need to move the motor up about 2 inches to change pans..
there on craigslist often here for pretty cheap!
Rite on.thats definitely good to know.i still havent figured out why my motor is more cocked to the driver side..

Last edited by ls1ChevyStang; Oct 2, 2015 at 07:33 PM. Reason: forgot somthing
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Old Oct 3, 2015 | 07:01 AM
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Did you make the 3 holes on each side on the motor mounts oblong so you can move the motor a little ??

Let me know if you come across a extra pan..
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Old Oct 3, 2015 | 12:31 PM
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Originally Posted by booboo37
Did you make the 3 holes on each side on the motor mounts oblong so you can move the motor a little ??

Let me know if you come across a extra pan..
I havent.so ill do that today.so do i oblong the holes toward the front of the car or side to side?
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Old Oct 3, 2015 | 08:09 PM
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looks good so far.
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Old Oct 4, 2015 | 08:36 AM
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I did mine side to side....but you can also loosen up the one big bolt that holds the motor mounts..... and move it slightly..
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Old Oct 4, 2015 | 08:53 AM
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Bowtie. Thx its a slow process,but itll get done..
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Old Oct 4, 2015 | 08:59 AM
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booboo
Alright,i found out i had the mounts the wrong way facing forward.so i switched that around last night.now i have 1" of room behind the intake.i tried loosening up the big bolts but it didnt seems to really make a difference.im gonna slot it as soon as i get home from work!
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Old Oct 5, 2015 | 10:41 PM
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A little update.today i got the motor to sat straight,i did have to elongate the holes on the driver mount.after i did that it was very easy.my trans(350turbo) was hitting my crossmember.so i had to notch it a bit,will box it in tomorrow after work..but its all lined up now!! Thanks guys i appreciate the help..
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Old Oct 7, 2015 | 11:24 PM
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I installed the water pump and alternator.i have to get my harmonic balancer from my old 5.7 since im using the fbody accesories and it doesnt line up with the truck harmonic balancer.i test fitted the radiator, i cut down the bottom hose.now i just need the brackets..
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Old Oct 9, 2015 | 11:34 AM
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Good to here that things are going better.....which radiator and fan are you using ?

What do u mean....i had to notch it a bit ???
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Old Oct 9, 2015 | 12:18 PM
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Yes its running a little smoother,however now i have to switch to truck accesories.my f body accesories dont line up with harmonic balancer..
I had to notch it because it was hitting my governer cover..
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